feat: Re-Implement customize options (#8969)

* Extend api to also include customize functions

* [FR] Re-Implement customize options
Fixes #8818

* re-implement header

* add splashscreen customisation

* make simpler

* fix rendering

* bump api

src/backend/InvenTree/InvenTree/api.py

@@ -20,6 +20,7 @@ from rest_framework.views import APIView
 
 import InvenTree.version
 import users.models
+from InvenTree import helpers
 from InvenTree.mixins import ListCreateAPI
 from InvenTree.templatetags.inventree_extras import plugins_info
 from part.models import Part
@@ -198,6 +199,14 @@ class VersionTextView(ListAPI):
 class InfoApiSerializer(serializers.Serializer):
     """InvenTree server information - some information might be blanked if called without elevated credentials."""
 
+    class CustomizeSerializer(serializers.Serializer):
+        """Serializer for customize field."""
+
+        logo = serializers.CharField()
+        splash = serializers.CharField()
+        login_message = serializers.CharField()
+        navbar_message = serializers
+
     server = serializers.CharField(read_only=True)
     version = serializers.CharField(read_only=True)
     instance = serializers.CharField(read_only=True)
@@ -214,6 +223,7 @@ class InfoApiSerializer(serializers.Serializer):
     default_locale = serializers.ChoiceField(
         choices=settings.LOCALE_CODES, read_only=True
     )
+    customize = CustomizeSerializer(read_only=True)
     system_health = serializers.BooleanField(read_only=True)
     database = serializers.CharField(read_only=True)
     platform = serializers.CharField(read_only=True)
@@ -263,6 +273,12 @@ class InfoView(APIView):
             'debug_mode': settings.DEBUG,
             'docker_mode': settings.DOCKER,
             'default_locale': settings.LANGUAGE_CODE,
+            'customize': {
+                'logo': helpers.getLogoImage(),
+                'splash': helpers.getSplashScreen(),
+                'login_message': helpers.getCustomOption('login_message'),
+                'navbar_message': helpers.getCustomOption('navbar_message'),
+            },
             # Following fields are only available to staff users
             'system_health': check_system_health() if is_staff else None,
             'database': InvenTree.version.inventreeDatabase() if is_staff else None,

src/backend/InvenTree/InvenTree/api_version.py

@@ -1,13 +1,16 @@
 """InvenTree API version information."""
 
 # InvenTree API version
-INVENTREE_API_VERSION = 306
+INVENTREE_API_VERSION = 307
 
 """Increment this API version number whenever there is a significant change to the API that any clients need to know about."""
 
 
 INVENTREE_API_TEXT = """
 
+v307 - 2025-01-29 : https://github.com/inventree/InvenTree/pull/8969
+    - Extend Info Endpoint to include customizations
+
 v306 - 2025-01-28 : https://github.com/inventree/InvenTree/pull/8966
     - Adds "start_date" to PurchasesOrder API
     - Adds "start_date" to SalesOrder API

src/backend/InvenTree/InvenTree/helpers.py

@@ -193,6 +193,15 @@ def getSplashScreen(custom=True):
     return static_storage.url('img/inventree_splash.jpg')
 
 
+def getCustomOption(reference: str):
+    """Return the value of a custom option from settings.CUSTOMIZE.
+
+    Args:
+        reference: Reference key for the custom option
+    """
+    return settings.CUSTOMIZE.get(reference, None)
+
+
 def TestIfImageURL(url):
     """Test if an image URL (or filename) looks like a valid image format.